I currently have a VPS hosting our client's websites and is clustered with 2 DNS-only servers. All are located in US. The current setup is Main Server (Synchorize) >> DNS-only1(Standalone) and DNS-only2(Standalone).

I will be adding another WHM/Cpanel VPS in another location (Asia), to host clients' websites and act as a DNS server as well to cater Asia traffic. What is the recommended settings for this setup?

Assuming you are the administrator of both web servers, you can setup the second hosting server the same way you setup the first one. Configure it to synchronize changes to both DNS-Only servers. Note that using US-based DNS-Only servers when traffic is primarily from Asia may result in a bit slower latency.

Assuming you are the administrator of both web servers, you can setup the second hosting server the same way you setup the first one. Configure it to synchronize changes to both DNS-Only servers. Note that using US-based DNS-Only servers when traffic is primarily from Asia may result in a bit slower latency.

Thank you.

Click to expand...

I agree with that.

Do you recommend I get another Asia VPS for DNS-only server(3rd DNS server) and point these 2 Hosting servers to these 3 DNS-only servers?

It's difficult to say how much of a speed increase you will see by using a server located closer to where your customers are making the connection attempts. If you do decide to utilize a server located in Asia for DNS-Only purposes, then it's likely better to not include the US-based servers in the cluster if you want to ensure only the Asian server is utilized.